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    1992 Mantis XCR

Mantis pioneered the "composite" construction by using the oversized aluminum front triangle and combining it with the smaller diameter cro-moly rear end.  The idea was to give the rigidity and efficiency of the big aluminum tubes but combine it with the suppleness of the smaller tubing in the rear end.  The small stay also allowed for better tire clearances.  The elevated chain stays eliminated the chain suck issue and allowed chain maintenance without a chain tool but ultimately died due to the excess weight and complexity of the extra tubing plus difficulties in reducing bottom bracket flex.  The composite construction was also found in the Fisher CR-7 plus the Cunningham designed Nishiki Alien series.  Elevated chain stays were found on many bikes of the era including the Yeti Ultimate, Nishiki Alien, Brave Warrior plus others.

  Click on thumbnails below for larger images:        

 1992 Mantis   1992 Mantis   1992 Mantis 1992 Mantis

Frame Aluminum main triangle, cro-moly rear
Fork Bontrager composite
Rear Shock NA
Rims Mavic M231
Hubs Suntour XC Pro Grease Guard, Ringle quick releases
Spokes Wheelsmith, double butted with alloy nipples
Tires Hutchinson
Pedals Suntour XC Pro Grease Guard
Crank Suntour XC Pro
Chain Sachs
Rear Cogs Suntour 7 speed cassette
Bottom Bracket Pressed cartridge bearing, Ti spindle
Front Derailleur Suntour XC Pro
Rear Derailleur Suntour XC Pro
Shifters Suntour XC Pro 7 speed thumb shifter
Handlebars Titec Titanium
Stem Salsa
Headset Chris King
Brake set Suntour XC with Self Energizing rear
Brake levers Suntour XC Pro
Saddle San Marco
Seat Post American Classic
Colors Bright Green
Size 18"
Serial #   XEC18525

 

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